Excel - Interactive Pages

So you've built a really cool PivotTable, and you hooked up a slicer to allow exploration of the data. And now you want to do something really cool, but you need to make your formula react to the slicer value. Can you do it? Of course you can, but how?

This article will focus on the technique to do exactly that: return the value of a slicer to a formula. Note that, in order to follow along you will need Excel 2010 or higher, as Slicers didn't exist prior to this version.
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The purpose of the VLOOKUP function is simple: it looks up data in tables and returns results from a different column. So if you have a table of products, for example, you could ask VLOOKUP to return the price for an item given the ID of the product.

But VLOOKUP is more than just that; it is the gateway to real Excel knowledge. The VLOOKUP function contains everything that a function can throw at you: multiple required parameters, optional parameters with defaults, and needs both ranges and numeric data in its input strings. If you can master this function, you can master ANY other function in Excel.
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In a discussion about PowerPivot yesterday, one of my friends stated that it wasnít really useful since you couldnít perform write-back using PowerPivot. To him this is a very important piece in the Excel budgeting process. Now, I agree that PowerPivot doesnít give you write-back to a database, but this got me thinking; we have linked tables, so why couldnít we create a write-back loop for a model that was built entirely in Excel? Well, we can!
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Iím a huge consumer of Data Validation in Excel. At this point, however, Excel services (the Excel webApp) is still so new that there are very few of the techniques that we normally use in Excel which are web compliant. This article looks at ways that we can implement data validation into an Excel services solution.
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What are dates?This may seem like a strange thing to ask but, as far as Excel is concerned, dates are numbers. By storing them as such, it gives us the ability to add or subtract days to/from a date, as well as get the difference between two dates. If dates were stored as text, this would not be possible. Storing dates as numbers also allows us to construct far more complicated formulas, based on results that we may want to know.
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This page is dedicated to explaining how to use what I believe are the five most valuable formulas for working with text in Excel. They are useful on their own many times, but can become immensely powerful when nested (combined) with other formulas later as well. Mastering these five formulas will open up the door to many things that you may have never thought possible. All of these formulas can be used by putting actual text in the "text" area, but their true power is unlocked when using them on cell references as the data can then be dynamic.
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